皮皮学，免费搜题
登录
搜题
【单选题】
有化学老师在教授《盐类水解》时，先引导学生分析Na2CO3和NaHCO3水溶液显碱性的本质原因，然后总结出强碱弱酸盐水溶液都显碱性，这位老师用到的教学方法是( )。A.
归纳法
B.
演绎法
C.
直观法
D.
再现法
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】According to the text, the main advantage of TapeStore over a human operator is that TapeStore?
A.
is more reliable.
B.
is much faster.
C.
is very secure.
【简答题】编写程序,从键盘输入一个学生的姓名(建议用字符数组)、年龄(合理的年龄段为16-25)、五级制C++语言考试分数(合理范围为0-5),调用函数float chechAgeScore(int age,float score),该函数主要完成两件事:通过检查两个形式参数的范围是否合理,抛出不同的异常信息;如果无异常,则返回对应的百分制成绩。主函数中定义try-catch块检测、捕获并处理异常。最后输出...
【简答题】螺旋输送机的螺旋型式与被输送物料性状之间的关系
【单选题】Which statement about the operator is not correct?
A.
The operator is a site bond with the repressor.
B.
The operator mediates a positive regulation of operon.
C.
The operator sites are in downstream of the promoter.
D.
The operator overlaps partly with the promoter some time.
【单选题】When the + operator is used with strings, it is known as the:
A.
Assignment operator
B.
String concatenation operator
C.
Addition operator
D.
Combined assignment operator
【单选题】In C language, the result of the logical ______ operator is 1 if the value of its operand is 0,0 if the value ofits operand is non-zero.
A.
AND
B.
NOT
C.
OR
D.
EOR
【单选题】When an operator is overloaded as a class member function, there is no parameter in its parameter table, indicating that the operator is ( ) ? 将运算符重载为类成员函数时,其参数表中没有参数,说明该运算符是
A.
Illegal operator 不合法的运算符
B.
Binary operator 二元运算符
C.
Unary operator 一元运算符
D.
Operators without operands 无操作数的运算符
【单选题】早孕习惯性流产者应首先进行的遗传检查是( )。
A.
针对染色体数目结构异常的核型分析
B.
SNP分析
C.
某些酶的活性检查
D.
病毒感染的基因诊断
E.
RELP分析法
相关题目：
参考解析：
知识点：
题目纠错 0
发布
